Erratum to: Breast Cancer Res Treat (2009) 113:423–434 DOI 10.1007/s10549-008-9944-1

Unfortunately, the authors could not find the blots of the original figures of 5a–c. As suggested by the Editor, the authors have repeated the experiments relative to Fig. 5a–c and the new Fig. 5a–c were provided in this erratum. The authors apologize for the inconvenience caused.

Fig. 5
figure 5

BRL induces the extrinsic apoptotic pathway in MCF7 cells. PPARγ (a) and FasL (b) protein expression (evaluated by WB) in MCF7 cells transfected with a 25-nucleotide of RNA interference (RNAi) targeted human PPARγ or FasL mRNA sequence respectively, or with control RNAi as reported in Materials and Methods or not transfected and treated for 48 h as indicated. β-actin was used as loading control. c MCF7 cells were treated for 48 h as indicated, or transfected with PPARγ, FasL or control RNAis. Positions of procaspase 8 (P) and its active cleavage product (S) are indicated by arrowheads on the right. One of three similar experiments is presented. β-actin was used as loading control on the same stripped blot. d DNA laddering was performed in MCF7 cells treated for 72-h as indicated, or transfected with PPARγ or control RNAis